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Sharapudinov Idris Idrisovich

Publications in Math-Net.Ru

  1. Sobolev-orthogonal systems of functions and the Cauchy problem for ODEs

    Izv. RAN. Ser. Mat., 83:2 (2019),  204–226
  2. The Basis Property of Ultraspherical Jacobi Polynomials in a Weighted Lebesgue Space with Variable Exponent

    Mat. Zametki, 106:4 (2019),  595–621
  3. Sobolev-orthogonal systems of functions and some of their applications

    Uspekhi Mat. Nauk, 74:4(448) (2019),  87–164
  4. Approximation properties of repeated de la Vallée-Poussin means for piecewise smooth functions

    Sibirsk. Mat. Zh., 60:3 (2019),  695–713
  5. Sobolev orthogonal polynomials generated by modified Laguerre polynomials and the Cauchy problem for ODE systems

    Daghestan Electronic Mathematical Reports, 2018, no. 10,  23–40
  6. On the existence and uniqueness of solutions of ODEs with discontinuous right-hand sides and Sobolev orthogonal systems of functions

    Daghestan Electronic Mathematical Reports, 2018, no. 9,  68–75
  7. An approximate solution of the Cauchy problem for an ODE system by means of system $1,\, x,\, \{\frac{\sqrt{2}}{\pi n}\sin(\pi nx)\}_{n=1}^\infty$

    Daghestan Electronic Mathematical Reports, 2018, no. 9,  33–51
  8. Sobolev-orthogonal systems of functions associated with an orthogonal system

    Izv. RAN. Ser. Mat., 82:1 (2018),  225–258
  9. Polynomials orthogonal with respect to Sobolev type inner product generated by Charlier polynomials

    Izv. Saratov Univ. Math. Mech. Inform., 18:2 (2018),  196–205
  10. On Vallée-Poissin means for special series with respect to ultraspherical Jacobi polynomials with sticking partial sums

    Izv. Vyssh. Uchebn. Zaved. Mat., 2018, no. 9,  68–80
  11. Sobolev orthogonal polynomials generated by Jacobi and Legendre polynomials, and special series with the sticking property for their partial sums

    Mat. Sb., 209:9 (2018),  142–170
  12. Overlapping transformations for approximation of continuous functions by means of repeated mean Valle Poussin

    Daghestan Electronic Mathematical Reports, 2017, no. 8,  70–92
  13. A numerical method for solving the Cauchy problem for systems of ordinary differential equations by means of a system orthogonal in the sense of Sobolev generated by the cosine system

    Daghestan Electronic Mathematical Reports, 2017, no. 8,  53–60
  14. Convergence of Fourier series in Jacobi polynomials in weighted Lebesgue space with variable exponent

    Daghestan Electronic Mathematical Reports, 2017, no. 8,  27–47
  15. The inversion of the Laplace transform by means of generalized special series of Laguerre polynomials

    Daghestan Electronic Mathematical Reports, 2017, no. 8,  7–20
  16. Approximation of the solution of the Cauchy problem for nonlinear ODE systems by means of Fourier series in functions orthogonal in the sense of Sobolev

    Daghestan Electronic Mathematical Reports, 2017, no. 7,  66–76
  17. Sobolev orthogonal functions on the grid, generated by discrete orthogonal functions and the Cauchy problem for the difference equation

    Daghestan Electronic Mathematical Reports, 2017, no. 7,  29–39
  18. Systems of functions orthogonal in the sense of Sobolev associated with Haar functions and the Cauchy problem for ODEs

    Daghestan Electronic Mathematical Reports, 2017, no. 7,  1–15
  19. Polynomials orthogonal in the Sobolev sense, generated by Chebyshev polynomials orthogornal on a mesh

    Izv. Vyssh. Uchebn. Zaved. Mat., 2017, no. 8,  67–79
  20. Approximation Properties of Fourier Series of Sobolev Orthogonal Polynomials with Jacobi Weight and Discrete Masses

    Mat. Zametki, 101:4 (2017),  611–629
  21. Special series in Laguerre polynomials and their approximation properties

    Sibirsk. Mat. Zh., 58:2 (2017),  440–467
  22. Difference equations and Sobolev orthogonal polynomials, generated by Meixner polynomials

    Vladikavkaz. Mat. Zh., 19:2 (2017),  58–72
  23. Systems of functions orthogonal with respect to scalar products of Sobolev type with discrete masses generated by classical orthogonal systems

    Daghestan Electronic Mathematical Reports, 2016, no. 6,  31–60
  24. Asymptotic properties of polynomials, orthogonal in Sobolev sence and associated with the Jacobi polynomials

    Daghestan Electronic Mathematical Reports, 2016, no. 6,  1–24
  25. Polynomials, orthogonal on Sobolev, derived by the Chebyshev polynomials, orthogonal on the uniform net

    Daghestan Electronic Mathematical Reports, 2016, no. 5,  56–75
  26. Sobolev orthogonal polynomials generated by Meixner polynomials

    Izv. Saratov Univ. Math. Mech. Inform., 16:3 (2016),  310–321
  27. Approximation of functions in variable-exponent Lebesgue and Sobolev spaces by de la Vallée-Poussin means

    Mat. Sb., 207:7 (2016),  131–158
  28. Interpolation of functions by the Whittaker sums and their modifications: conditions for uniform convergence

    Vladikavkaz. Mat. Zh., 18:4 (2016),  61–70
  29. On the simultaneous approximation of functions and their derivatives by Chebyshev polynomials orthogonal on uniform grid

    Daghestan Electronic Mathematical Reports, 2015, no. 4,  74–117
  30. Some special series by general Laguerre polynomials and Fourier series by Laguerre polynomials, orthogonal in Sobolev sense

    Daghestan Electronic Mathematical Reports, 2015, no. 4,  31–73
  31. Sobolev orthogonal polynomials, associated with the Chebyshev polynomials of the first kind

    Daghestan Electronic Mathematical Reports, 2015, no. 4,  1–14
  32. Mixed series by classical orthogonal polynomials

    Daghestan Electronic Mathematical Reports, 2015, no. 3,  1–254
  33. Approximation properties of Fejér- and de la Valleé-Poussin-type means for partial sums of a special series in the system $\{\sin x\sin kx\}_{k=1}^\infty$

    Mat. Sb., 206:4 (2015),  131–148
  34. On the identification of the parameters of linear systems using Chebyshev polynomials of the first kind and Chebyshev polynomials orthogonal on a uniform grid

    Daghestan Electronic Mathematical Reports, 2014, no. 2,  1–32
  35. Polynomials, orthogonal on grids from unit circle and number axis

    Daghestan Electronic Mathematical Reports, 2014, no. 1,  1–55
  36. Some special series in ultraspherical polynomials and their approximation properties

    Izv. RAN. Ser. Mat., 78:5 (2014),  201–224
  37. Discrete Transform with Stick Property Based on $\{\sin x\sin kx\}$ and Second Kind Chebyshev Polynomials Systems

    Izv. Saratov Univ. Math. Mech. Inform., 14:4(1) (2014),  413–422
  38. Some Special Two-dimensional Series of $\{\sin x\sin kx\}$ System and Their Approximation Properties

    Izv. Saratov Univ. Math. Mech. Inform., 14:4(1) (2014),  407–412
  39. Approximation of functions in variable-exponent Lebesgue and Sobolev spaces by finite Fourier-Haar series

    Mat. Sb., 205:2 (2014),  145–160
  40. Approximation of functions in $L^{p(x)}_{2\pi}$ by trigonometric polynomials

    Izv. RAN. Ser. Mat., 77:2 (2013),  197–224
  41. Approximation of Smooth Functions in $L^{p(x)}_{2\pi}$ by Vallee-Poussin Means

    Izv. Saratov Univ. Math. Mech. Inform., 13:1(1) (2013),  45–49
  42. Limit Ultraspherical Series and Their Approximation Properties

    Mat. Zametki, 94:2 (2013),  295–309
  43. Mixed Series of Jacobi and Chebyshev Polynomials and Their Discretization

    Mat. Zametki, 88:1 (2010),  116–147
  44. Approximating smooth functions using algebraic-trigonometric polynomials

    Mat. Sb., 201:11 (2010),  137–160
  45. Same properties $r$-fold integration series on Fourier–Haar system

    Izv. Saratov Univ. Math. Mech. Inform., 9:1 (2009),  68–76
  46. The basis property of the Legendre polynomials in the variable exponent Lebesgue space $L^{p(x)}(-1,1)$

    Mat. Sb., 200:1 (2009),  137–160
  47. Approximation Properties of the Vallée-Poussin Means of Partial Sums of a Mixed Series of Legendre Polynomials

    Mat. Zametki, 84:3 (2008),  452–471
  48. Approximation properties of mixed series in terms of Legendre polynomials on the classes $W^r$

    Mat. Sb., 197:3 (2006),  135–154
  49. Mixed Series of Chebyshev Polynomials Orthogonal on a Uniform Grid

    Mat. Zametki, 78:3 (2005),  442–465
  50. Mixed series in ultraspherical polynomials and their approximation properties

    Mat. Sb., 194:3 (2003),  115–148
  51. Approximation Properties of the Operators $\mathscr Y_{n+2r}(f)$ and of Their Discrete Analogs

    Mat. Zametki, 72:5 (2002),  765–795
  52. Approximation of discrete functions, and Chebyshev polynomials orthogonal on a uniform grid

    Mat. Zametki, 67:3 (2000),  460–470
  53. Approximation of functions of variable smoothness by Fourier–Legendre sums

    Mat. Sb., 191:5 (2000),  143–160
  54. On a new application of Chebyshev polynomials orthogonal on a uniform grid

    Mat. Zametki, 64:6 (1998),  950–953
  55. Asymptotics and weighted estimates of Meixner polynomials orthogonal on the grid $\{0,\delta,2\delta,\dots\}$

    Mat. Zametki, 62:4 (1997),  603–616
  56. Estimating the $L_p$-norm of an algebraic polynomial in terms of its values at the nodes of a uniform grid

    Mat. Sb., 188:12 (1997),  135–156
  57. Convergence of the Vallée–Poussin means for Fourier–Jacobi sums

    Mat. Zametki, 60:4 (1996),  569–586
  58. Uniform boundedness in $L^p$ $(p=p(x))$ of some families of convolution operators

    Mat. Zametki, 59:2 (1996),  291–302
  59. Boundedness in $C[-1,1]$ of the de la Vallée-Poussin means for discrete Chebyshev–Fourier sums

    Mat. Sb., 187:1 (1996),  143–160
  60. On the convergence of the method of least squares

    Mat. Zametki, 53:3 (1993),  131–143
  61. On the asymptotics of Chebyshev polynomials that are orthogonal on a finite system of points

    Vestnik Moskov. Univ. Ser. 1. Mat. Mekh., 1992, no. 1,  29–35
  62. Asymptotic properties and weighted estimates for Chebyshev–Hahn orthogonal polynomials

    Mat. Sb., 182:3 (1991),  408–420
  63. Approximation properties of discrete Fourier sums

    Diskr. Mat., 2:2 (1990),  33–44
  64. On the asymptotic behavior of Chebyshev orthogonal polynomials of a discrete variable

    Mat. Zametki, 48:6 (1990),  150–152
  65. Some properties of Meixner orthogonal polynomials

    Mat. Zametki, 47:3 (1990),  135–137
  66. Asymptotic properties of orthogonal Hahn polynomials in a discrete variable

    Mat. Sb., 180:9 (1989),  1259–1277
  67. Asymptotic properties of Krawtchouk polynomials

    Mat. Zametki, 44:5 (1988),  682–693
  68. Application of Meixner polynomials to approximate calculation of integrals

    Izv. Vyssh. Uchebn. Zaved. Mat., 1986, no. 2,  80–82
  69. On the basis property of the Haar system in the space $\mathscr L^{p(t)}([0,1])$ and the principle of localization in the mean

    Mat. Sb. (N.S.), 130(172):2(6) (1986),  275–283
  70. Asymptotic properties and weight estimates of Hahn polynomials

    Izv. Vyssh. Uchebn. Zaved. Mat., 1985, no. 5,  78–80
  71. Some properties of polynomials, orthogonal on a finite system of points

    Izv. Vyssh. Uchebn. Zaved. Mat., 1983, no. 5,  85–88
  72. Best approximation and the Fourier–Jacobi sums

    Mat. Zametki, 34:5 (1983),  651–661
  73. Topology of the space $\mathscr L^{p(t)}([0,1])$

    Mat. Zametki, 26:4 (1979),  613–632


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